101
|
Jiang Q, Shi P, Li C, Wang Q, Xu F, Yang W, Tang G. (Coixan polysaccharide)-graft-polyethylenimine folate for tumor-targeted gene delivery. Macromol Biosci 2010; 11:435-44. [PMID: 21136538 DOI: 10.1002/mabi.201000350] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2010] [Revised: 10/11/2010] [Indexed: 01/06/2023]
Abstract
CP-PEI-FA was prepared as an effective vector for in vitro and in vivo tumor-targeted gene delivery. The structures of the polymers were characterized, and their DNA condensation capability, particle sizes, zeta potentials, cytotoxicity and in vitro/in vivo transfection were examined. The cytotoxicity of CP-PEI-FA was significantly lower than that of PEI 25 kDa and close to that of PEI 1200. The in vitro transfection of CP-PEI-FA was tested in C6 and HeLa cells (FR-positive cells) and A549 cells (FR-negative cells). CP-PEI-FA showed a high targeting specificity and good gene transfection efficiency in FR-positive cells. These results indicate that CP-PEI-FA is a safe and effective polyplex-forming agent for both in vitro and in vivo transfection of plasmid DNA.
Collapse
Affiliation(s)
- Qiying Jiang
- Institute of Chemical Biology and Pharmaceutical Chemistry, Zhejiang University, Hangzhou 310028, China
| | | | | | | | | | | | | |
Collapse
|
102
|
Ortiz Mellet C, García Fernández JM, Benito JM. Cyclodextrin-based gene delivery systems. Chem Soc Rev 2010; 40:1586-608. [PMID: 21042619 DOI: 10.1039/c0cs00019a] [Citation(s) in RCA: 294] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cyclodextrin (CD) history has been largely dominated by their unique ability to form inclusion complexes with guests fitting in their hydrophobic cavity. Chemical funcionalization was soon recognized as a powerful mean for improving CD applications in a wide range of fields, including drug delivery, sensing or enzyme mimicking. However, 100 years after their discovery, CDs are still perceived as novel nanoobjects of undeveloped potential. This critical review provides an overview of different strategies to promote interactions between CD conjugates and genetic material by fully exploiting the inside-outside/upper-lower face anisotropy of the CD nanometric platform. Covalent modification, self-assembling and supramolecular ligation can be put forward with the ultimate goal to build artificial viruses for programmed and efficient gene therapy (222 references).
Collapse
Affiliation(s)
- Carmen Ortiz Mellet
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 553, E-41071 Sevilla, Spain.
| | | | | |
Collapse
|
103
|
Posadas I, Guerra FJ, Ceña V. Nonviral vectors for the delivery of small interfering RNAs to the CNS. Nanomedicine (Lond) 2010; 5:1219-36. [DOI: 10.2217/nnm.10.105] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
While efficient methods for cell line transfection are well described, for primary neurons a high-yield method different from those relying on viral vectors is lacking. Viral vector-based primary neuronal infection has several drawbacks, including complexity of vector preparation, safety concerns and the generation of immune and inflammatory responses, when used in vivo. This article will cover the different approaches that are being used to efficiently deliver genetic material (both DNA and small interfering RNA) to neuronal tissue using nonviral vectors, including the use of cationic lipids, polyethylenimine derivatives, dendrimers, carbon nanotubes and the combination of carbon-made nanoparticles with dendrimers. The effectiveness, both in vivo and in vitro, of the different methods to deliver genetic material to neural tissue is discussed.
Collapse
Affiliation(s)
- Inmaculada Posadas
- Unidad Asociada Neurodeath, CSIC-Universidad de Castilla-La Mancha. Departamento de Ciencias Médicas. Albacete, Spain Unidad Asociada Neurodeath, Facultad de Medicina, Avda. Almansa, 14, 02006 Albacete, Spain
- CIBERNED, Instituto de Salud Carlos III, Spain
- CIBER-BBN, Instituto de Salud Carlos III, Spain
| | - Francisco Javier Guerra
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Química-IRICA, Universidad de Castilla-La Mancha, Ciudad Real, Spain
- NanoDrugs, S.L. Parque Científico y Tecnológico, Albacete, Spain
| | | |
Collapse
|
104
|
Soderquist RG, Mahoney MJ. Central nervous system delivery of large molecules: challenges and new frontiers for intrathecally administered therapeutics. Expert Opin Drug Deliv 2010; 7:285-93. [PMID: 20201735 DOI: 10.1517/17425240903540205] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
IMPORTANCE OF THE FIELD Therapeutic proteins and DNA constructs offer promise for the treatment of central nervous system disorders, yet significant biological barriers limit the ability of these molecules to reach the central nervous system from the bloodstream. Direct administrations to the cerebrospinal fluid (intrathecal administration) comprise an emerging field to facilitate the efficient delivery of these biological macromolecules to central nervous system tissues. AREAS COVERED IN THIS REVIEW Previous reports from 1990 to the present time describing the interactions and turnover of the cerebrospinal fluid within the intrathecal space, characterizations of the effects that therapeutic proteins and DNA have shown after intrathecal delivery through a lumbar route, and reports of emerging technologies to address the limitations of intrathecally administered macromolecules are reviewed. WHAT THE READER WILL GAIN This review provides an overview of the limitations that must be overcome for intrathecally administered biological macromolecules and the recent advances and promising approaches for surmounting these limitations. TAKE HOME MESSAGE Emerging approaches that stabilize and sustain the delivery of intrathecally administered biological macromolecules may enhance substantially the clinical relevance of promising therapeutic proteins and DNA constructs for the treatment of various central nervous system disorders.
Collapse
Affiliation(s)
- Ryan G Soderquist
- University of Colorado at Boulder, Department of Chemical and Biological Engineering, 424 UCB, Boulder, CO 80309, USA
| | | |
Collapse
|
105
|
|
106
|
Wan F, Tang Z, He W, Chu B. A chemistry/physics pathway with nanofibrous scaffolds for gene delivery. Phys Chem Chem Phys 2010; 12:12379-89. [DOI: 10.1039/c002515a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
107
|
Opanasopit P, Rojanarata T, Apirakaramwong A, Ngawhirunpat T, Ruktanonchai U. Nuclear localization signal peptides enhance transfection efficiency of chitosan/DNA complexes. Int J Pharm 2009; 382:291-5. [DOI: 10.1016/j.ijpharm.2009.08.029] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Revised: 08/04/2009] [Accepted: 08/23/2009] [Indexed: 11/28/2022]
|
108
|
Low molecular weight polyethylenimine cross-linked by 2-hydroxypropyl-gamma-cyclodextrin coupled to peptide targeting HER2 as a gene delivery vector. Biomaterials 2009; 31:1830-8. [PMID: 19942284 DOI: 10.1016/j.biomaterials.2009.11.012] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Accepted: 11/03/2009] [Indexed: 11/23/2022]
Abstract
Gene delivery is one of the critical steps for gene therapy. Non-viral vectors have many advantages but suffered from low gene transfection efficiency. Here, in order to develop new polymeric gene vectors with low cytotoxicity and high gene transfection efficiency, we synthesized a cationic polymer composed of low molecular weight polyethylenimine (PEI) of molecular weight of 600 Da cross-linked by 2-hydroxypropyl-gamma-cyclodextrin (HP gamma-CD) and then coupled to MC-10 oligopeptide containing a sequence of Met-Ala-Arg-Ala-Lys-Glu. The oligopeptide can target to HER2, the human epidermal growth factor receptor 2, which is often over expressed in many breast and ovary cancers. The new gene vector was expected to be able to target delivery of genes to HER2 positive cancer cells for gene therapy. The new gene vector was composed of chemically bonded HP gamma-CD, PEI (600 Da), and MC-10 peptide at a molar ratio of 1:3.3:1.2. The gene vector could condense plasmid DNA at an N/P ratio of 6 or above. The particle size of HP gamma-CD-PEI-P/DNA complexes at N/P ratios 40 was around 170-200 nm, with zeta potential of about 20 mV. The gene vector showed very low cytotoxicity, strong targeting specificity to HER2 receptor, and high efficiency of delivering DNA to target cells in vitro and in vivo with the reporter genes. The delivery of therapeutic IFN-alpha gene mediated by the new gene vector and the therapeutic efficiency were also studied in mice animal model. The animal study results showed that the new gene vector HP gamma-CD-PEI-P significantly enhanced the anti-tumor effect on tumor-bearing nude mice as compared to PEI (25 kDa), HP gamma-CD-PEI, and other controls, indicating that this new polymeric gene vector is a potential candidate for cancer gene therapy.
Collapse
|
109
|
Bolhassani A, Ghasemi N, Servis C, Taghikhani M, Rafati S. The efficiency of a novel delivery system (PEI600-Tat) in development of potent DNA vaccine using HPV16 E7 as a model antigen. Drug Deliv 2009; 16:196-204. [PMID: 19514980 DOI: 10.1080/10717540902757721] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
DNA vaccination is a promising approach for inducing both humoral and cellular immune responses. The mode of plasmid DNA delivery is critical to make progress in DNA vaccination. Using human papillomavirus type 16 E7 as a model antigen, this study evaluated the effect of peptide-polymer hybrid including PEI600-Tat conjugate as a novel gene delivery system on the potency of antigen-specific immunity in mice model. At ratio of 10:50 PEI-Tat/E7DNA (w/w), both humoral and cellular immune responses were significantly enhanced as compared with E7DNA construct and induced Th1 response. Therefore, this new delivery system could have promising applications in gene therapy.
Collapse
|
110
|
Jere D, Jiang HL, Arote R, Kim YK, Choi YJ, Cho MH, Akaike T, Cho CS. Degradable polyethylenimines as DNA and small interfering RNA carriers. Expert Opin Drug Deliv 2009; 6:827-34. [PMID: 19558333 DOI: 10.1517/17425240903029183] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Gene therapy is a powerful approach in the treatment of a wide range of both inherited and acquired diseases. Nonviral delivery systems have been proposed as safer alternatives to viral vectors because they avoid the inherent immunogenicity and production problems that are seen when viral systems are used. Many cationic polymers, including high-molecular-weight polyethylenimine (PEI) have been widely studied as gene-delivery carriers, both, in vitro and in vivo. However, interest has recently developed in degradable polymeric systems. The advantage of degradable polymer is its low in-vivo cytotoxicity, which is a result of its easy elimination from the cells and body. Degradable polymer also enhances transfection of DNA or small interfering RNA (siRNA) for efficient gene expression or silencing, respectively. This review paper summarizes and discusses the recent advances with degradable PEIs, such as cross-linked and grafted PEIs for DNA and siRNA delivery.
Collapse
Affiliation(s)
- D Jere
- Seoul National University, Research Institute for Agriculture and Life Sciences, Department of Agricultural Biotechnology, Seoul 151-921, Korea
| | | | | | | | | | | | | | | |
Collapse
|
111
|
Yao H, Ng SS, Tucker WO, Tsang YKT, Man K, Wang XM, Chow BK, Kung HF, Tang GP, Lin MC. The gene transfection efficiency of a folate–PEI600–cyclodextrin nanopolymer. Biomaterials 2009; 30:5793-803. [DOI: 10.1016/j.biomaterials.2009.06.051] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2009] [Accepted: 06/26/2009] [Indexed: 01/06/2023]
|
112
|
|
113
|
Arima H, Motoyama K. Recent Findings Concerning PAMAM Dendrimer Conjugates with Cyclodextrins as Carriers of DNA and RNA. SENSORS (BASEL, SWITZERLAND) 2009; 9:6346-61. [PMID: 22454589 PMCID: PMC3312448 DOI: 10.3390/s90806346] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Revised: 08/06/2009] [Accepted: 08/07/2009] [Indexed: 01/28/2023]
Abstract
We have evaluated the potential use of various polyamidoamine (PAMAM) dendrimer [dendrimer, generation (G) 2-4] conjugates with cyclodextrins (CyDs) as novel DNA and RNA carriers. Among the various dendrimer conjugates with CyDs, the dendrimer (G3) conjugate with α-CyD having an average degree of substitution (DS) of 2.4 [α-CDE (G3, DS2)] displayed remarkable properties as DNA, shRNA and siRNA delivery carriers through the sensor function of α-CDEs toward nucleic acid drugs, cell surface and endosomal membranes. In an attempt to develop cell-specific gene transfer carriers, we prepared sugar-appended α-CDEs. Of the various sugar-appended α-CDEs prepared, galactose- or mannose-appended α-CDEs provided superior gene transfer activity to α-CDE in various cells, but not cell-specific gene delivery ability. However, lactose-appended α-CDE [Lac-α-CDE (G2)] was found to possess asialoglycoprotein receptor (AgpR)-mediated hepatocyte-selective gene transfer activity, both in vitro and in vivo. Most recently, we prepared folate-poly(ethylene glycol)-appended α-CDE [Fol-PαC (G3)] and revealed that Fol-PαC (G3) imparted folate receptor (FR)-mediated cancer cell-selective gene transfer activity. Consequently, α-CDEs bearing integrated, multifunctional molecules may possess the potential to be novel carriers for DNA, shRNA and siRNA.
Collapse
Affiliation(s)
- Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan; E-Mail: (K.M.)
| | - Keiichi Motoyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan; E-Mail: (K.M.)
| |
Collapse
|
114
|
Gene delivery through the use of a hyaluronate-associated intracellularly degradable crosslinked polyethyleneimine. Biomaterials 2009; 30:5834-43. [PMID: 19631979 DOI: 10.1016/j.biomaterials.2009.07.012] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2009] [Accepted: 07/08/2009] [Indexed: 11/22/2022]
Abstract
For a non-viral gene delivery system to be clinically effective, it should be non-toxic, compatible with biological components, and highly efficient in gene transfection. With this goal in mind, we investigated the gene delivery efficiency of a ternary complex consisting of DNA, an intracellularly degradable polycation, and sodium hyaluronate (DPH complex). Here, we report that the DPH ternary complex achieved significantly higher transfection efficiency than other polymer systems, especially in the presence of serum. The high transfection efficiency and serum tolerance of DPH are attributed to a unique interplay between CLPEI and HA, which leads to (i) the improved stability of DNA in the extracellular environment and at the early stage of intracellular trafficking and (ii) timely dissociation of the DNA-polymer complex. This study reinforces findings of earlier studies that emphasized each step as a bottleneck for efficient gene delivery; yet, it is the first to show that it is possible to overcome these obstacles simultaneously by taking advantage of two distinctive approaches.
Collapse
|
115
|
Kievit FM, Veiseh O, Bhattarai N, Fang C, Gunn JW, Lee D, Ellenbogen RG, Olson JM, Zhang M. PEI-PEG-Chitosan Copolymer Coated Iron Oxide Nanoparticles for Safe Gene Delivery: synthesis, complexation, and transfection. ADVANCED FUNCTIONAL MATERIALS 2009; 19:2244-2251. [PMID: 20160995 PMCID: PMC2756666 DOI: 10.1002/adfm.200801844] [Citation(s) in RCA: 211] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Gene therapy offers the potential of mediating disease through modification of specific cellular functions of target cells. However, effective transport of nucleic acids to target cells with minimal side effects remains a challenge despite the use of unique viral and non-viral delivery approaches. Here we present a non-viral nanoparticle gene carrier that demonstrates effective gene delivery and transfection both in vitro and in vivo. The nanoparticle system (NP-CP-PEI) is made of a superparamagnetic iron oxide nanoparticle (NP), which enables magnetic resonance imaging, coated with a novel copolymer (CP-PEI) comprised of short chain polyethylenimine (PEI) and poly(ethylene glycol) (PEG) grafted to the natural polysaccharide, chitosan (CP), which allows efficient loading and protection of the nucleic acids. The function of each component material in this nanoparticle system is illustrated by comparative studies of three nanoparticle systems of different surface chemistries, through material property characterization, DNA loading and transfection analyses, and toxicity assessment. Significantly, NP-CP-PEI demonstrates an innocuous toxic profile and a high level of expression of the delivered plasmid DNA in a C6 xenograft mouse model, making it a potential candidate for safe in vivo delivery of DNA for gene therapy.
Collapse
Affiliation(s)
- Forrest M Kievit
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195 (USA)
| | | | | | | | | | | | | | | | | |
Collapse
|
116
|
Hashimoto T, Tachibana Y, Nozaki H, Mazda O, Niidome T, Murakami A, Yamaoka T. Intracellular Enzyme-responsive Fragmentation of Nonviral Gene Carriers Leads to Polyplex Destabilization and Enhanced Transgene Expression. CHEM LETT 2009. [DOI: 10.1246/cl.2009.718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
117
|
Wen Y, Pan S, Luo X, Zhang X, Zhang W, Feng M. A biodegradable low molecular weight polyethylenimine derivative as low toxicity and efficient gene vector. Bioconjug Chem 2009; 20:322-32. [PMID: 19152330 DOI: 10.1021/bc800428y] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polyethylenimine (PEI) is a class of cationic polymers proven to be effective for gene delivery. However, PEI is nondegradable and the molecular weight of PEI affects the cytotoxicity and gene transfer activity. Aiming to prepare a biodegradable gene vector with high transfection efficiency and low cytotoxicity, we conjugated low molecular weight (LMW) PEIs to the biodegradable backbone polyglutamic acids derivative (PEG-b-PBLG) by aminolysis to form PEIs combined PEG-b-PLG-g-PEIs (GGI). Two copolymers, GGI 30 and GGI 40, were synthesized. The chemistry of GGI was characterized using IR, 1H NMR and 13C NMR, GPC, and CD, respectively. The degradation behaviors of copolymer GGI in papain solution were investigated. GGIs showed good DNA condensation ability and high protection of DNA from nuclease degradation. The zeta potential of the GGI/pDNA polyplexes was approximately 15 mV, and the particle size was in the range 102-138 nm at N/P ratios between 10 and 30. The particle size and the morphology of the polyplex was further confirmed by transmission electron microscope (TEM). In cytotoxicity assay, GGIs were significantly less toxic than PEI 25k. The degradation product of GGI exhibited negligible effects on cells even at high copolymer concentration. The results of GFP flow cytometry and fluorescence imaging showed that the trasnfection efficiencies of GGIs were all markedly higher than PEI 25k in Hela, HepG2, Bel 7402, and 293 cell lines. Importantly, the presence of serum had a lower inhibitive effect on the transfection activity of GGI in comparison to PEI 25k and Lipofectamine 2000. Therefore, PEG-b-PLG-g-PEI copolymers may be attractive cationic polymers for nonviral gene therapy.
Collapse
Affiliation(s)
- Yuting Wen
- School of Pharmaceutical Sciences and the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | | | | | | | | | | |
Collapse
|
118
|
Giordano C, Causa F, Bianco F, Perale G, Netti PA, Ambrosio L, Cigada A. Gene delivery systems for gene therapy in tissue engineering and central nervous system applications. Int J Artif Organs 2009; 31:1017-26. [PMID: 19115193 DOI: 10.1177/039139880803101205] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The present review aims to describe the potential applications of gene delivery systems to tissue engineering and central nervous system diseases. Some key experimental work has been done with interesting results, but the subject is far from being fully explored. The combined approach of gene therapy and material science has a huge potential to improve the therapeutic approaches now available for a wide range of medical applications. Focus is given to this multidisciplinary strategy in neurodegenerative pathologies, where the use of polymeric matrices as gene carriers might make a crucial difference.
Collapse
Affiliation(s)
- C Giordano
- Department of Chemistry, Materials and Chemical Engineering G. Natta, Politecnico di Milano, Milano, Italy.
| | | | | | | | | | | | | |
Collapse
|
119
|
Peng Q, Hu C, Cheng J, Zhong Z, Zhuo R. Influence of Disulfide Density and Molecular Weight on Disulfide Cross-Linked Polyethylenimine as Gene Vectors. Bioconjug Chem 2009; 20:340-6. [DOI: 10.1021/bc800451j] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qi Peng
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Chu Hu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Juan Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Zhenlin Zhong
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| |
Collapse
|
120
|
Srinivasachari S, Reineke TM. Versatile supramolecular pDNA vehicles via “click polymerization” of β-cyclodextrin with oligoethyleneamines. Biomaterials 2009; 30:928-38. [DOI: 10.1016/j.biomaterials.2008.09.067] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Accepted: 09/25/2008] [Indexed: 11/26/2022]
|
121
|
Huang H, Yu H, Li D, Liu Y, Shen F, Zhou J, Wang Q, Tang G. A novel co-polymer based on hydroxypropyl alpha-cyclodextrin conjugated to low molecular weight polyethylenimine as an in vitro gene delivery vector. Int J Mol Sci 2008; 9:2278-2289. [PMID: 19330075 PMCID: PMC2635622 DOI: 10.3390/ijms9112278] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2008] [Revised: 11/04/2008] [Accepted: 11/07/2008] [Indexed: 01/19/2023] Open
Abstract
A novel co-polymer based on 2-hydroxypropyl-alpha-cyclodextrin cross-linked by low molecular weight polyethylenimine was synthesized as a gene delivery vector. The copolymer could bind and condense DNA tightly. It showed lower cytotoxicity than PEI 25kDa in SK-BR-3 cells. Transfection efficiency was increased over 5.5-fold higher than PEI 25 kDa in SK-BR-3 cells in complete serum medium. It is a potential candidate vector for gene therapy.
Collapse
Affiliation(s)
- Hongliang Huang
- School of Life Science, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, P. R. China. E-Mail:
| | - Hai Yu
- Institute of Immunology, Zhejiang University, Yuhangtang Road 388, Hangzhou, P. R. China. E-Mails:
(H. Y.);
(D. L.);
(Y. L.);
(F. S.)
| | - Da Li
- Institute of Immunology, Zhejiang University, Yuhangtang Road 388, Hangzhou, P. R. China. E-Mails:
(H. Y.);
(D. L.);
(Y. L.);
(F. S.)
| | - Yang Liu
- Institute of Immunology, Zhejiang University, Yuhangtang Road 388, Hangzhou, P. R. China. E-Mails:
(H. Y.);
(D. L.);
(Y. L.);
(F. S.)
| | - Fenping Shen
- Institute of Immunology, Zhejiang University, Yuhangtang Road 388, Hangzhou, P. R. China. E-Mails:
(H. Y.);
(D. L.);
(Y. L.);
(F. S.)
| | - Jun Zhou
- Institute of Chemical Biology and Pharmaceutical Chemistry, Zhejiang University, Tianmushan Road 148, Hangzhou, P. R. China. E-Mail:
(J. Z.)
| | - Qingqing Wang
- Institute of Immunology, Zhejiang University, Yuhangtang Road 388, Hangzhou, P. R. China. E-Mails:
(H. Y.);
(D. L.);
(Y. L.);
(F. S.)
- * Authors to whom correspondence should be addressed; E-Mail:
(G. T.); Tel. +86-571-882-732-84; Fax: +86-571-882-732-84; E-Mail:
(Q. W.); Tel. +86-571-882-082-81
| | - Guping Tang
- Institute of Chemical Biology and Pharmaceutical Chemistry, Zhejiang University, Tianmushan Road 148, Hangzhou, P. R. China. E-Mail:
(J. Z.)
- * Authors to whom correspondence should be addressed; E-Mail:
(G. T.); Tel. +86-571-882-732-84; Fax: +86-571-882-732-84; E-Mail:
(Q. W.); Tel. +86-571-882-082-81
| |
Collapse
|
122
|
Cyclodextrin-based supramolecular architectures: syntheses, structures, and applications for drug and gene delivery. Adv Drug Deliv Rev 2008; 60:1000-17. [PMID: 18413280 DOI: 10.1016/j.addr.2008.02.011] [Citation(s) in RCA: 595] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Accepted: 02/14/2008] [Indexed: 11/21/2022]
Abstract
The supramolecular structures formed between cyclodextrins (CDs) and polymers have inspired interesting developments of novel supramolecular biomaterials. This review will update the recent progress in studies on supramolecular structures based on CDs and block copolymers, followed by the design and synthesis of CD-based supramolecular hydrogels and biodegradable polyrotaxanes for potential controlled drug delivery, and CD-containing cationic polymers and cationic polyrotaxanes for gene delivery. Supramolecular hydrogels based on the self-assembly of the inclusion complexes between CDs with biodegradable block copolymers could be used as promising injectable drug delivery systems for sustained controlled release of macromolecular drugs. Biodegradable polyrotaxanes with drug-conjugated CDs threaded on a polymer chain with degradable end-caps could be interesting supramolecular prodrugs for controlled and targeting delivery of drugs. CD-containing cationic polymers as gene carriers showed reduced cytotoxicity than non-CD-containing polymer counterparts. More importantly, the polyplexes of CD-containing cationic polymers with DNA could be pegylated through a supramolecular process using inclusion complexation between the CD moieties and a modified PEO. Finally, new cationic polyrotaxanes composed of multiple oligoethylenimine-grafted CDs threaded and end-capped on a block copolymer chain were designed and synthesized as a new class of polymeric gene delivery vectors, where the chain-interlocked cationic cyclic units formed an integrated supramolecular entity to function as a macromolecular gene vector. The development of the supramolecular biomaterials through inclusion complexation has opened up a new approach for designing novel drug and gene delivery systems, which may have many advantages over the systems based on the conventional polymeric materials.
Collapse
|
123
|
Paris S, Burlacu A, Durocher Y. Opposing Roles of Syndecan-1 and Syndecan-2 in Polyethyleneimine-mediated Gene Delivery. J Biol Chem 2008; 283:7697-704. [DOI: 10.1074/jbc.m705424200] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
124
|
Luten J, van Nostrum CF, De Smedt SC, Hennink WE. Biodegradable polymers as non-viral carriers for plasmid DNA delivery. J Control Release 2008; 126:97-110. [DOI: 10.1016/j.jconrel.2007.10.028] [Citation(s) in RCA: 345] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Accepted: 10/29/2007] [Indexed: 10/22/2022]
|
125
|
Peng Q, Zhong Z, Zhuo R. Disulfide Cross-Linked Polyethylenimines (PEI) Prepared via Thiolation of Low Molecular Weight PEI as Highly Efficient Gene Vectors. Bioconjug Chem 2008; 19:499-506. [DOI: 10.1021/bc7003236] [Citation(s) in RCA: 189] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qi Peng
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Zhenlin Zhong
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
| |
Collapse
|
126
|
Opanasopit P, Apirakaramwong A, Ngawhirunpat T, Rojanarata T, Ruktanonchai U. Development and characterization of pectinate micro/nanoparticles for gene delivery. AAPS PharmSciTech 2008; 9:67-74. [PMID: 18446463 DOI: 10.1208/s12249-007-9007-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Accepted: 10/18/2007] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to investigate the possibility of using pectinate micro/nanoparticles as gene delivery systems. Pectinate micro/nanoparticles were produced by ionotropic gelation. Various factors were studied for their effects on the preparation of pectinate micro/nanoparticles: the pH of the pectin solution, the ratio of pectin to the cation, the concentration of pectin and the cation, and the type of cation (calcium ions, magnesium ions and manganese ions). After the preparation, the size and charge of the pectin micro/nanoparticles and their DNA incorporation efficiency were evaluated. The results showed that the particle sizes decreased with the decreased concentrations of pectin and cation. The type of cations affected the particle size. Sizes of calcium pectinate particles were larger than those of magnesium pectinate and manganese pectinate particles. The DNA loading efficiency showed that Ca-pectinate nanoparticles could entrap DNA up to 0.05 mg when the weight ratio of pectin:CaCl(2):DNA was 0.2:1:0.05. However, Mg-pectinate could entrap only 0.01 mg DNA when the weight ratio of pectin:MgCl(2):DNA was 1:100:0.01 The transfection efficiency of both Ca-pectinate and Mg-pectinate nanoparticles yielded relatively low levels of green fluorescent protein expression and low cytotoxicity in Huh7 cells. Given the negligible cytotoxic effects, these pectinate micro/nanoparticles can be considered as potential candidates for use as safe gene delivery carriers.
Collapse
|
127
|
Díaz-Moscoso A, Balbuena P, Gómez-García M, Ortiz Mellet C, Benito JM, Le Gourriérec L, Di Giorgio C, Vierling P, Mazzaglia A, Micali N, Defaye J, García Fernández JM. Rational design of cationic cyclooligosaccharides as efficient gene delivery systems. Chem Commun (Camb) 2008:2001-3. [DOI: 10.1039/b718672j] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
128
|
Lin C, Blaauboer CJ, Timoneda MM, Lok MC, van Steenbergen M, Hennink WE, Zhong Z, Feijen J, Engbersen JFJ. Bioreducible poly(amido amine)s with oligoamine side chains: synthesis, characterization, and structural effects on gene delivery. J Control Release 2007; 126:166-74. [PMID: 18162194 DOI: 10.1016/j.jconrel.2007.11.012] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2007] [Revised: 11/14/2007] [Accepted: 11/16/2007] [Indexed: 11/25/2022]
Abstract
A group of bioreducible poly(amido amine)s containing multiple disulfide linkages in main chain and oligoamines in side chain (SS-PAOAs) were prepared by Michael-type polyaddition of N-tert-butyloxycarbonyl (N-Boc) protected oligoamine to the disulfide-containing cystaminebisacrylamide, followed by deprotection of the Boc-protective groups. These linear polymers show strong DNA condensation capability at low N/P ratios. The chemical structure of oligoamine side chains (i.e. amine type and amino spacer length) in the SS-PAOAs has a distinct effect on their buffer capacity, transfection efficiency and toxicity profile. The SS-PAOAs containing secondary amino functions in the side chain show high buffer capacities and are able to transfect COS-7 cells in vitro at low N/P ratios, with transfection efficiencies similar or even higher than those of 25 kDa branched pEI, along with very low cytotoxicity as determined by XTT assay. Increase of the alkyl spacer from ethylene to propylene between the amino units in side chains results in significant lower transfection and increased toxicity. This study presents detailed factors influencing the relationship between structure and gene delivery properties and may provide helpful insights for the further development of safe and efficient non-viral vectors.
Collapse
Affiliation(s)
- Chao Lin
- Department of Biomedical Chemistry, Institute for Biomedical Technology (BMTI), Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | | | | | | | | | | | | | | | | |
Collapse
|
129
|
Andersen MØ, Howard KA, Paludan SR, Besenbacher F, Kjems J. Delivery of siRNA from lyophilized polymeric surfaces. Biomaterials 2007; 29:506-12. [PMID: 17950838 DOI: 10.1016/j.biomaterials.2007.10.003] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Accepted: 10/02/2007] [Indexed: 01/22/2023]
Abstract
Standard in vitro gene silencing protocols are performed using aqueous formulations of transfection reagents and small interfering RNAs (siRNA) reconstituted immediately prior to use. In this study, we describe a method for producing gene silencing-active lyophilized cationic polymer (chitosan) or lipid (TransIT-TKO) siRNA formulations. We demonstrate specific and efficient knockdown of enhanced green fluorescent protein (EGFP) in H1299 human lung carcinoma cells transfected in plates pre-coated with both TransIT-TKO/siRNA ( approximately 85%) and a chitosan/siRNA formulation containing sucrose as lyoprotectant ( approximately 70%). This method removes the necessity for both siRNA reconstitution immediately prior to use and addition onto cells. Furthermore, silencing activity of the chitosan/siRNA formulation was shown over the period studied ( approximately 2 months) when stored at room temperature. Higher cell viability was observed using the chitosan system compared to the lipid formulation. Silencing of the proinflammatory cytokine tumour necrosis factor (TNF-alpha) was also demonstrated in the RAW macrophage cell line using the lyophilized chitosan/siRNA system suggesting that the coating can improve the biocompatibility of medical implants. This work describes an efficient gene silencing methodology using freeze-dried formulations with potential applications as a high throughput screening tool for gene function, biocompatible medical implant components and longer shelf-life therapeutics.
Collapse
Affiliation(s)
- Morten Ø Andersen
- Interdisciplinary Nanoscience Center (iNANO), University of Aarhus, 8000 Aarhus C, Denmark
| | | | | | | | | |
Collapse
|
130
|
Bergen JM, Park IK, Horner PJ, Pun SH. Nonviral approaches for neuronal delivery of nucleic acids. Pharm Res 2007; 25:983-98. [PMID: 17932730 PMCID: PMC2292496 DOI: 10.1007/s11095-007-9439-5] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Accepted: 08/20/2007] [Indexed: 12/23/2022]
Abstract
The delivery of therapeutic nucleic acids to neurons has the potential to treat neurological disease and spinal cord injury. While select viral vectors have shown promise as gene carriers to neurons, their potential as therapeutic agents is limited by their toxicity and immunogenicity, their broad tropism, and the cost of large-scale formulation. Nonviral vectors are an attractive alternative in that they offer improved safety profiles compared to viruses, are less expensive to produce, and can be targeted to specific neuronal subpopulations. However, most nonviral vectors suffer from significantly lower transfection efficiencies than neurotropic viruses, severely limiting their utility in neuron-targeted delivery applications. To realize the potential of nonviral delivery technology in neurons, vectors must be designed to overcome a series of extra- and intracellular barriers. In this article, we describe the challenges preventing successful nonviral delivery of nucleic acids to neurons and review strategies aimed at overcoming these challenges.
Collapse
Affiliation(s)
- Jamie M Bergen
- Bioengineering, University of Washington, Seattle, WA 98195, USA
| | | | | | | |
Collapse
|
131
|
|
132
|
Swami A, Aggarwal A, Pathak A, Patnaik S, Kumar P, Singh Y, Gupta KC. RETRACTED: Imidazolyl-PEI modified nanoparticles for enhanced gene delivery. Int J Pharm 2007; 335:180-192. [PMID: 17169517 DOI: 10.1016/j.ijpharm.2006.11.033] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2006] [Revised: 11/01/2006] [Accepted: 11/03/2006] [Indexed: 10/23/2022]
Abstract
The derivatives of polyethylenimine (PEI 25 and 750kDa) were synthesized by partially substituting their amino groups with imidazolyl moieties. The series of imidazolyl-PEIs thus obtained were cross-linked with polyethylene glycol (PEG) to get imidazolyl-PEI-PEG nanoparticles (IPP). The component of hydrophobicity was introduced by grafting the lauryl groups in the maximal substituted IPP nanoparticles (IPPL). The nanoparticles were characterized with respect to DNA interaction, hydrodynamic diameter, zeta potential, in vitro cytotoxicity and transfection efficiency on model cell lines. The IPP and IPPL nanoparticles formed a loose complex with DNA compared to the corresponding native PEI, leading to more efficient unpackaging of DNA. The DNA loading capacity of IPP and IPPL nanoparticles was also lower compared to PEI. The imidazolyl substitution improved the gene delivery efficiency of PEI (750kDa) by nine- to ten-fold and PEI (25kDa) by three- to four-fold. At maximum transfection efficiency, the zeta potential of nanoparticles was positive after forming a complex with DNA. The maximum level of reporter gene expression was mediated by IPPL nanoparticles in both the series. The cytotoxicity, another pertinent problem with cationic polymers, was also negligible in case of IPP and IPPL nanoparticles.
Collapse
Affiliation(s)
- Archana Swami
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India
| | - Anita Aggarwal
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India
| | - Atul Pathak
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India
| | - Soma Patnaik
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India
| | - P Kumar
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India
| | - Y Singh
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India
| | - K C Gupta
- Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi 110007, India.
| |
Collapse
|
133
|
Lv H, Zhang S, Wang B, Cui S, Yan J. Toxicity of cationic lipids and cationic polymers in gene delivery. J Control Release 2006; 114:100-9. [PMID: 16831482 DOI: 10.1016/j.jconrel.2006.04.014] [Citation(s) in RCA: 1566] [Impact Index Per Article: 87.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2006] [Accepted: 04/26/2006] [Indexed: 12/16/2022]
Abstract
Gene therapy, as a promising therapeutics to treat genetic or acquired diseases, has achieved exciting development in the past two decades. Appropriate gene vectors can be crucial for gene transfer. Cationic lipids and polymers, the most important non-viral vectors, have many advantages over viral ones as non-immunogenic, easy to produce and not oncogenic. They hold the promise to replace viral vectors to be used in clinic. However, the toxicity is still an obstacle to the application of non-viral vectors to gene therapy. For overcoming the problem, many new cationic compounds have been developed. This article provides a review with respect to toxicity of cationic lipids and polymers in gene delivery. We evaluate the structural features of cationic compounds and summarize the relationship of toxicity and structure and hope to provide available suggestions on the development of these cationic compounds.
Collapse
Affiliation(s)
- Hongtao Lv
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | | | | | | | | |
Collapse
|